wen_restart: Fix the epoch_stakes used in calculation. #8287

Job	Run time
check	2m 30s
cargo-test-sbf (token/program)	9m 51s
cargo-test-sbf (instruction-padding/program, token/program-2022, token/program-2022-test)	17m 16s
test (token/cli, token/program, token/program-2022, associated-token-account/program, instruction...	16m 9s
cargo-test-sbf (associated-token-account/program, associated-token-account/program-test)	8m 18s
test (single-pool/cli, single-pool/program)	15m 54s
cargo-test-sbf (token-upgrade/program)	7m 43s
cargo-test-sbf (feature-proposal/program)	7m 20s
test (token-upgrade/cli, token-upgrade/program)	15m 50s
cargo-test-sbf (governance/addin-mock/program, governance/program)	11m 32s
cargo-test-sbf (memo/program)	9m 43s
cargo-test-sbf (name-service/program)	7m 24s
cargo-test-sbf (stake-pool/program)	14m 22s
cargo-test-sbf (single-pool/program)	8m 16s
	2h 32m 8s

Provide feedback